Third planet of the Sol System. Homeworld of humans. The only inhabited planet known to humans.
Europe
Asia
Africa
North America
South America
Antarctica
Australia
Sometimes Australia is lumped togeather with a number of rather pathetic Islands under the heading: Oceania (consisting of Australasia, Melanesia, Micronesia and Polynesia)
India
Arabia
Central America
British Isles
Japanese islands
Greenland
Madagascar
New Zealand
Indonesia
Philippines
Iceland
Caribbean Islands
Earth is one of the main settings for Series episodes.